4ZSR

BACE crystal structure with tricyclic aminothiazine inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Preparation and biological evaluation of conformationally constrained BACE1 inhibitors.

Winneroski, L.L.Schiffler, M.A.Erickson, J.A.May, P.C.Monk, S.A.Timm, D.E.Audia, J.E.Beck, J.P.Boggs, L.N.Borders, A.R.Boyer, R.D.Brier, R.A.Hudziak, K.J.Klimkowski, V.J.Garcia Losada, P.Mathes, B.M.Stout, S.L.Watson, B.M.Mergott, D.J.

(2015) Bioorg Med Chem 23: 3260-3268

  • DOI: 10.1016/j.bmc.2015.04.062
  • Primary Citation of Related Structures:  
    4ZSM, 4ZSP, 4ZSQ, 4ZSR

  • PubMed Abstract: 
  • The BACE1 enzyme is a key target for Alzheimer's disease. During our BACE1 research efforts, fragment screening revealed that bicyclic thiazine 3 had low millimolar activity against BACE1. Analysis of the co-crystal structure of 3 suggested that pote ...

    The BACE1 enzyme is a key target for Alzheimer's disease. During our BACE1 research efforts, fragment screening revealed that bicyclic thiazine 3 had low millimolar activity against BACE1. Analysis of the co-crystal structure of 3 suggested that potency could be increased through extension toward the S3 pocket and through conformational constraint of the thiazine core. Pursuit of S3-binding groups produced low micromolar inhibitor 6, which informed the S3-design for constrained analogs 7 and 8, themselves prepared via independent, multi-step synthetic routes. Biological characterization of BACE inhibitors 6-8 is described.


    Organizational Affiliation

    Lilly Research Laboratories, A Division of Eli Lilly & Co., Lilly Corporate Center, Indianapolis, IN 46285, USA. Electronic address: mergottdu@lilly.com.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-secretase 1AB442Homo sapiensMutation(s): 0 
Gene Names: BACE1BACEKIAA1149
EC: 3.4.23.46
Find proteins for P56817 (Homo sapiens)
Explore P56817 
Go to UniProtKB:  P56817
NIH Common Fund Data Resources
PHAROS  P56817
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
4RY
Query on 4RY

Download CCD File 
A, B
N-[(4aS,6S,8aR)-2-amino-5,6,7,8-tetrahydro-4a,8a-(methanooxymethano)-3,1-benzothiazin-6(4H)-yl]-3-chlorobenzamide
C17 H20 Cl N3 O2 S
XDMHBNONUZHFDP-JQFCIGGWSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
4RYIC50:  36100   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.188 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.546α = 90
b = 89.795β = 90
c = 131.27γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
REFMACphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2015-05-13 
  • Released Date: 2015-06-10 
  • Deposition Author(s): Timm, D.E.

Revision History 

  • Version 1.0: 2015-06-10
    Type: Initial release
  • Version 1.1: 2015-06-17
    Changes: Database references